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Summary of Contents for Uniden LRD747
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Page 3: Table Of Contents
Feature Highlights ....... 2 Included with Your Radar Detector ....3 Speed Detection . -
Page 4: Ntroduction
The LRD 747/LRD 757 employs Super Stalker Technology (SST), a state-of-the-art electronic system designed to make this radar detector invisible to all current VG-2 radar detector detectors. The LRD 747/LRD 757 also uses the new D.R.O. (Dielectric Resonant Oscillator) and E.D.I.T. -
Page 5: Included With Your Radar Detector
Be sure to complete and mail the product registration card. Included with your radar detector. INCLUDED WITH YOUR RADAR DETECTOR Reference Guide Printed Material Straight Power Cord Coiled Cigarette Adapter LRD 747 Only Windshield Clip... -
Page 6: Speed Detection
SPEED DETECTION SYSTEMS A speed detection device (often called a radar gun) sends out either a microwave signal or beam of light. When this signal reaches its target, part of the signal is reflected or bounced back toward the emitting gun. The time required for the signal to leave the gun, bounce off an object, and return is used to determine a vehicle’s distance and speed. -
Page 7: Laser
The Laser Speed Detection System, also called LIDAR (for Light Detection and Ranging), uses a laser gun that emits infrared light pulses just outside the spectrum of visible light. Each reflected pulse measures the speed of the object coming toward or going away from the laser gun. -
Page 8: Controls
CONTROLS AND FUNCTIONS Clip Release — Press the clip release button to remove the LRD 747/LRD 757 from the windshield mounting clip. Rear and Side Laser Detector Lense — For rear and side detection of laser signals. Press the city button to help reduce X-band false alarms while driving in the city. -
Page 9: Led Panel
Every time you turn on the LRD 747/LRD 757, a self test is performed for all LEDs and Alert tones. You will hear, in-order, four distinct tones for the X-, K-, and Ka-SuperWideband radar bands, as well as for laser, laser L2 and SWS. -
Page 10: Installation
Both radar waves and IR laser light will, however, pass through plastic or glass. Before you decide where to put your radar detector, please keep in mind these two important factors: For safety, do not mount the LRD 747/LRD 757 in a location where it will obstruct your driving vision. -
Page 11: Helpful Tips
HELPFUL TIPS The antenna and the forward looking sensor are located behind the rear panel of the unit, (and the rear- and side-looking sensors are located on top of the unit), directly behind the mode selection keys. The antenna and sensors should not be obstructed by metal or metallic surfaces and should be pointed at the horizon for accurate long-range detection. -
Page 12: Adjusting The Windshield Mounting Clip
ADJUSTING THE WINDSHIELD MOUNTING CLIP The metal portion of the bracket locks into the plastic portion at three different positions. These positions can be used for vehicles with different vertical angles of their windshields. The back position can be used for vehicles with windshields that are slanted back For optimum laser detection, bend the angled portion of the windshield mounting bracket so that the LRD 747/LRD 757... -
Page 13: Connecting The Power
The power cord provided with the unit has a cigarette lighter socket plug at one end and a small connector at the other. Use only a Uniden supplied power cord or its replacement. When installing the power cord, make sure that: Your unit also comes with ten power cord mounting clips. -
Page 14: Replacing The Fuse
REPLACING THE FUSE The cigarette lighter plug contains a 1-ampere fuse to protect it from power surges. To replace the fuse, unscrew the top of the plug. Remove the fuse and replace it with the same type. To replace the top, push in the two metal contacts and twist into place. -
Page 15: Operation
OPERATION You are now ready to enjoy the convenience and security of your LRD 747/LRD 757. Please read this section of the Reference Guide carefully to familiarize yourself with the basic operation of this unit. POWER ON Turn the volume control to switch on the power. When you power up the LRD 747/LRD 757, it performs a self-test of all its circuits. -
Page 16: Memory Retention Feature
MEMORY RETENTION FEATURE The Memory Retention Feature retains the LRD 747/LRD 757’s operational settings in memory for at least 2 days without power. When you turn on the LRD 747/LRD 757, it will be in the same mode as when you turned it off. FULL WARNING When the LRD 747/LRD 757 detects a radar, laser, or safety warning signal, it emits a distinct warning tone and the... -
Page 17: Visual Alert Operation
You can operate the LRD 747/LRD 757 in Visual Alert Only by setting the volume control at the minimum position in Full WARNING Alert Mode. At this setting you can barely hear the audio alert in a quiet environment. Be sure that the Audio Alert Only To operate with indicator is off. -
Page 18: City Operation
If you use both the Audio Only Alert and City modes, you won’t receive an audio alert until you are very close to the radar source. CITY OPERATION In highly populated areas, you may encounter many devices that use the same frequencies as radar signals, such as motion detectors, automatic doors, and intrusion alarms. -
Page 19: Led Signal Strength Meter In City Mode
LED SIGNAL STRENGTH METER IN CITY MODE The LED signal strength meter gives you instant information about the strength of the signal being detected. A weak signal causes the first LED to light, but as signal strength increases, more LEDs light. All three LEDs light when full signal strength is received. -
Page 20: Care And Maintenance
CARE AND MAINTENANCE The LRD 747/LRD 757 is designed to give you years of trouble-free service. There are no user-serviceable parts inside, and, except for the fuse, no maintenance is required. To keep your detector in new condition, follow these important suggestions: Never leave the LRD 747/LRD 757 on the windshield when you park your vehicle. -
Page 21: Troubleshooting
If your LRD 747/LRD 757 does not perform up to expectations, try the suggestions listed below. If you cannot get satisfactory results, call the Uniden Customer Service Center at (800) 297-1023, 7:00 a.m. to 7:00 p.m. Central Time, Monday through Friday. -
Page 22: Specifications
Convex Condenser Lens Detector Type: Pulse Width Discriminator Receiver Bandwidth: 30 Mhz Spectral Response: 800 - 1100 nm Alert Hold Time: 3 seconds Radar Detector Receiver Type: Double Conversion Superheterodyne Self-Contained Antenna Detector Type: Scanning Frequency Discriminator Antenna Type: Linear polarized, E vector vertical...
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